Corrosion Compatibility Studies of Stainless Steel 304L in Flowing Liquid Lead Bismuth Eutectic

Corrosion of Metals and Nickel-Based Alloys in Liquid Bismuth–Lithium Alloy

“…This discrepancy was caused by adhesion of bismuth to the surface of metals; the residual amounts of bismuth did not allow correctly determining the weight loss of the samples by the gravimetric method. Such behavior is very common and was noted in previous corrosion studied performed in liquid bismuth [27][28][29][30][31][32][33][34][35]. As a result, on several occasions, gravimetric analysis was rejected for determining corrosion rates of materials in liquid bismuth [27,28].…”

“…As a result, on several occasions, gravimetric analysis was rejected for determining corrosion rates of materials in liquid bismuth [27,28]. However, more often, various methods have been employed for removing remaining bismuth from sample surfaces, and these include holding the samples in silicone [29,30], glycerol [31,32] or hot oil [33] at 150-180 • C; evaporating bismuth at elevated temperatures [25]; and treating samples in acidic solutions [29,34,35]. In the present study, to remove bismuth, the samples after the experiments were kept in dilute nitric acid to dissolve the bismuth.…”

“…Under the conditions of the experiments, the amount of solvent (bismuth) was so large that the formation of intermetallic compounds was suppressed by the dissolution process. It was shown, for example, that BiNi and Bi 3 Ni phases were unstable in the presence of excess liquid bismuth and dissolved until bismuth was saturated with nickel [35]. Formation of "dark" and "gray" phases can be explained in the following way.…”